From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
Rob Herring <robh+dt@kernel.org>
Cc: Jonathan Marek <jonathan@marek.ca>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v2 3/4] arm64: dts: sdm845: move bus clock to mdp node for sdm845 target
Date: Fri, 28 May 2021 18:33:47 +0300 [thread overview]
Message-ID: <2dc79aad-33cd-7b17-368f-d52d60d46811@linaro.org> (raw)
In-Reply-To: <20210407150157.801210-4-dmitry.baryshkov@linaro.org>
On 07/04/2021 18:01, Dmitry Baryshkov wrote:
> Move the bus clock to mdp device node,in order to facilitate bus band
> width scaling on sdm845 target.
>
> The parent device MDSS will not vote for bus bw, instead the vote will
> be triggered by mdp device node. Since a minimum vote is required to
> turn on bus clock, move the clock node to mdp device from where the
> votes are requested.
drm/msm patches were merged through the msm tree (targeting 5.13).
Shouldn't we also merge these two patches (targeting 5.13 as fixes or 5.14)?
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
> arch/arm64/boot/dts/qcom/sdm845.dtsi | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 7395ef20b90e..55704804c2ca 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -4136,9 +4136,8 @@ mdss: mdss@ae00000 {
> power-domains = <&dispcc MDSS_GDSC>;
>
> clocks = <&gcc GCC_DISP_AHB_CLK>,
> - <&gcc GCC_DISP_AXI_CLK>,
> <&dispcc DISP_CC_MDSS_MDP_CLK>;
> - clock-names = "iface", "bus", "core";
> + clock-names = "iface", "core";
>
> assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
> assigned-clock-rates = <300000000>;
> @@ -4166,11 +4165,12 @@ mdss_mdp: mdp@ae01000 {
> <0 0x0aeb0000 0 0x2008>;
> reg-names = "mdp", "vbif";
>
> - clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> + clocks = <&gcc GCC_DISP_AXI_CLK>,
> + <&dispcc DISP_CC_MDSS_AHB_CLK>,
> <&dispcc DISP_CC_MDSS_AXI_CLK>,
> <&dispcc DISP_CC_MDSS_MDP_CLK>,
> <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> - clock-names = "iface", "bus", "core", "vsync";
> + clock-names = "gcc-bus", "iface", "bus", "core", "vsync";
>
> assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
> <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
>
--
With best wishes
Dmitry
next prev parent reply other threads:[~2021-05-28 15:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-07 15:01 [PATCH v2 0/4] drm/msm/dpu: always use mdp device to scale bandwidth Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 1/4] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50 Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 2/4] drm/msm/dpu: always use mdp device to scale bandwidth Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 3/4] arm64: dts: sdm845: move bus clock to mdp node for sdm845 target Dmitry Baryshkov
2021-05-28 15:33 ` Dmitry Baryshkov [this message]
2021-05-31 14:42 ` Bjorn Andersson
2021-05-31 18:03 ` Dmitry Baryshkov
2021-04-07 15:01 ` [PATCH v2 4/4] arm64: dts: sm8250: move bus clock to mdp node for sm8250 target Dmitry Baryshkov
2021-05-31 14:58 ` Bjorn Andersson
2021-05-31 17:28 ` Dmitry Baryshkov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2dc79aad-33cd-7b17-368f-d52d60d46811@linaro.org \
--to=dmitry.baryshkov@linaro.org \
--cc=agross@kernel.org \
--cc=airlied@linux.ie \
--cc=bjorn.andersson@linaro.org \
--cc=daniel@ffwll.ch \
--cc=devicetree@vger.kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=jonathan@marek.ca \
--cc=linux-arm-msm@vger.kernel.org \
--cc=robdclark@gmail.com \
--cc=robh+dt@kernel.org \
--cc=sean@poorly.run \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).